An unorganised mass of cells is called

Options

A. totipotent
B. explant
C. callus
D. corax

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the term used to describe an unorganized mass of cells.

2. **Identifying Relevant Terms**: In the context of plant biology, we need to identify terms related to cell organization. The terms mentioned include "totipotent," "explant," "callus," and "corex."

3. **Defining Totipotency**: Totipotent cells are those that have the ability to develop into an entire organism. This concept is important but does not directly answer the question regarding an unorganized mass of cells.

4. **Defining Explant**: An explant refers to a small piece of tissue taken from a plant or animal for experimental purposes. While related to cell culture, it does not describe an unorganized mass of cells.

5. **Identifying Callus**: A callus is specifically defined as an unorganized mass of cells that forms, particularly in the context of plant tissue. It typically occurs at the site of a wound on a plant, where cells proliferate to cover the injury.

6. **Conclusion**: Based on the definitions and context, the term that describes an unorganized mass of cells is "callus."

**Final Answer**: An unorganized mass of cells is called a **callus**.

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